ABB ADS420 Dissolved Oxygen Probe
The ABB ADS420 is a smart, plug-and-play optical dissolved oxygen sensor designed for fast, drift-free performance. It features automatic sensor recognition, predictive diagnostics, and factory pre-calibration for effortless setup. Built with dynamic luminescence quenching technology, it delivers accurate and reliable DO measurements with minimal maintenance.
US EPA-approved, it's ideal for NPDES permit holders monitoring influent, effluent, and treatment processes. With flexible installation options and a long-life SmartCap, the ADS420 ensures low operating costs and maximum reliability—perfect for wastewater and industrial applications.






